definition: what is data? data is anything in the form of 1.charts 2.tables 3.text 4.maps 5.photos...
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Examples of dataTRANSCRIPT
![Page 1: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/1.jpg)
![Page 2: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/2.jpg)
Definition:What is data?Data is anything in the form of1. Charts2. Tables3. Text4. Maps5. Photos6. Imageries, etc.
![Page 3: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/3.jpg)
Examples of data
![Page 4: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/4.jpg)
Data vs. Information• Data are collection of facts• Data are observed/recorded• It simply exists and does not have meaning
of itself• Information is obtained when the data is
summarized/analyzed and the result is put into a meaningful context
![Page 5: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/5.jpg)
Data vs. Information
Data Information
![Page 6: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/6.jpg)
Beyond Data & Information
DataInformation
Knowledge
Wisdom
![Page 7: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/7.jpg)
Sources of GIS data1. Existing Maps (analog & digital)2. Remotely sensed data
a. Photographsb. Satellite Imageryc. Lidar
3. Field observationa. Survey / Samplingb. GPS data
![Page 8: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/8.jpg)
Most of the GIS data are now available online from respective State GIS data
clearing house
www.granit.sr.unh.edu In NH (GRANIT):
In VA (VGIS): www.vcgi.orgIn MA (MASS GIS): www.mass.gov/mgis/
www.gis.ny.govIn NY:
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Sources of digital data
![Page 10: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/10.jpg)
Sources of digital data
![Page 11: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/11.jpg)
Data formatMost of the vector GIS data are in• Shapefile (ArcView 3.x)• ArcInfo interchange file (.e00)
You have to use Import function in ArcGISto make an ArcInfo interchange file usable!
![Page 12: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/12.jpg)
Data format• We will be using Geodatabase in
this class• Shapefiles can be exported to a
feature class in a Geodatabase
![Page 13: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/13.jpg)
Advantage of Geodatabase
You can easily get the total length of Roads in NY!
Feature class provides updated length of line feature
![Page 14: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/14.jpg)
Advantage of GeodatabaseFeature class provides updated area & perimeter of each polygon in a Geodatabase
![Page 15: Definition: What is data? Data is anything in the form of 1.Charts 2.Tables 3.Text 4.Maps 5.Photos 6.Imageries, etc](https://reader036.vdocument.in/reader036/viewer/2022062306/5a4d1aed7f8b9ab05997bd36/html5/thumbnails/15.jpg)
What about area in a shape file?• Shape file does not update the area of a
polygon in the output layer• You have to manually update it!
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